On Saturday, August 13, 2022 we will be working on the Adafruit Customer Support Forums. If you visit over the weekend and things are not complete yet, please check back later, https://adafruit.com/forumupdates
ThinkPad X200s Hot Mod: Swapping the RJ12 with SMA RF for External Antenna
Ketturi has the brilliant and simple – brilliantly simple! – hack for swapping out the RJ12 receptacle on his older (“but trusty”) ThinkPad X200s for a SMA-type RF connector for use with an external antenna. Neat!
I have old but trusty Thinkpad X200s laptop that is now retired but still occasionally used. Due being s model, it does not have build in 3G/WWAN antennas in display because there is no space for them. Independent internet connectivity is often useful, especially in places where there is no WiFi or good cell coverage.
Like many business notebooks, my Thinkpad still had 56k modem and land line RJ12 connector, which isn’t that useful in most western countries where POTS and analog modem services have long being discontinued.
My ThinkPad X200s is highest configuration with some self added options, and includes high resolution display, 9 hour battery life, Bluetooth 4LE, 3×3 WiFi-n and other improvements, but lacked WWAN connectivity. It is not available option for this model, as there is no way to fit 6 antennas in thin LCD bezel, but WWAN mini pci-e and sim card still remains in motherboard that is same from other configurations.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.